This book is essential to anyone interested in space exploration.

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问题 This book is essential to anyone interested in space exploration.

选项 A、dispensable
B、indisputable
C、indispensable
D、disputable

答案C

解析 essential基本的,本质的,提炼的。dispensable可有可无的,不重要的。indisputable不可争辩的,明白的。indispensable重要的,必要的。disputable有争论余地的,可质疑的。
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